我正在使用react和react-router。
我试图在反应路由器的“链接”中传递属性
var React = require('react');
var Router = require('react-router');
var CreateIdeaView = require('./components/createIdeaView.jsx');
var Link = Router.Link;
var Route = Router.Route;
var DefaultRoute = Router.DefaultRoute;
var RouteHandler = Router.RouteHandler;
var App = React.createClass({
render : function(){
return(
<div>
<Link to="ideas" params={{ testvalue: "hello" }}>Create Idea</Link>
<RouteHandler/>
</div>
);
}
});
var routes = (
<Route name="app" path="/" handler={App}>
<Route name="ideas" handler={CreateIdeaView} />
<DefaultRoute handler={Home} />
</Route>
);
Router.run(routes, function(Handler) {
React.render(<Handler />, document.getElementById('main'))
});
“Link”呈现页面，但不将属性传递给新视图。
下面是视图代码
var React = require('react');
var Router = require('react-router');
var CreateIdeaView = React.createClass({
render : function(){
console.log('props form link',this.props,this)//props not recived
return(
<div>
<h1>Create Post: </h1>
<input type='text' ref='newIdeaTitle' placeholder='title'></input>
<input type='text' ref='newIdeaBody' placeholder='body'></input>
</div>
);
}
});
module.exports = CreateIdeaView;
如何使用“链接”传递数据?
对于v6:注意!状态应该在from to={}之外
// route setup
<Route path="/employee-edit/:empId" element={<EmployeeEdit />} / >
链接到组件
<Link to={"/employee-edit/1"} state={{ data: employee }} > Edit </Link>
or
<Link to={{
pathname: "/employee-edit/1",
search: "?sort=name",
hash: "#the-hash",
}}
state={{ data: employee }} > Edit </Link>
注意:state在from{}之外，但是for
版本5:
<Link
to={{
pathname: "/courses",
search: "?sort=name",
hash: "#the-hash",
state: { fromDashboard: true }
}}
/>
Funtional组件:
import React from "react";
import { useLocation } from "react-router-dom";
const LinkTest = () => {
const location = useLocation();
console.log("Location", location);
return <h1>Link Test</h1>;
};
export default LinkTest;
类组件:为了使用钩子，我们需要将它包装在功能组件中，并传递props:
import React, { Component } from "react";
import { useLocation, useParams } from "react-router-dom";
class LinkTestComponent extends Component {
render() {
console.log(this.props);
return <h1>Link Test</h1>;
}
}
export default () => (
<LinkTestComponent params={useParams()} location={useLocation()} />
);
用"react-router-dom": "^6.2.2"测试，
我在显示应用程序中的用户详细信息时遇到了同样的问题。
你可以这样做:
<Link to={'/ideas/'+this.props.testvalue }>Create Idea</Link>
or
<Link to="ideas/hello">Create Idea</Link>
and
<Route name="ideas/:value" handler={CreateIdeaView} />
在CreateIdeaView类中通过this.props.match.params.value来获取。
你可以看看这个对我帮助很大的视频:https://www.youtube.com/watch?v=ZBxMljq9GSE
对于v6:注意!状态应该在from to={}之外
// route setup
<Route path="/employee-edit/:empId" element={<EmployeeEdit />} / >
链接到组件
<Link to={"/employee-edit/1"} state={{ data: employee }} > Edit </Link>
or
<Link to={{
pathname: "/employee-edit/1",
search: "?sort=name",
hash: "#the-hash",
}}
state={{ data: employee }} > Edit </Link>
注意:state在from{}之外，但是for
版本5:
<Link
to={{
pathname: "/courses",
search: "?sort=name",
hash: "#the-hash",
state: { fromDashboard: true }
}}
/>
Funtional组件:
import React from "react";
import { useLocation } from "react-router-dom";
const LinkTest = () => {
const location = useLocation();
console.log("Location", location);
return <h1>Link Test</h1>;
};
export default LinkTest;
类组件:为了使用钩子，我们需要将它包装在功能组件中，并传递props:
import React, { Component } from "react";
import { useLocation, useParams } from "react-router-dom";
class LinkTestComponent extends Component {
render() {
console.log(this.props);
return <h1>Link Test</h1>;
}
}
export default () => (
<LinkTestComponent params={useParams()} location={useLocation()} />
);
用"react-router-dom": "^6.2.2"测试，
在我的情况下，我有一个空道具的功能组件，这解决了它:
<Link
to={{
pathname: `/dashboard/${device.device_id}`,
state: { device },
}}
>
View Dashboard
</Link>
在你的函数组件中，你应该有这样的东西:
import { useLocation } from "react-router"
export default function Dashboard() {
const location = useLocation()
console.log(location.state)
return <h1>{`Hello, I'm device ${location.state.device.device_id}!`}</h1>
}
